<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <script>
    var arr = [{label:'男',value: 1}, {label:'女',value: 0}]
  
      function f(arr) {
        // 写代码，得到
        let obj = {};
					for (let k in arr){
					         obj[arr[k].value] = arr[k].label;
					     };
					return obj
      }
      var obj = f(arr);
      console.log(obj)
 // obj2 = {'1': '男'， '0': '女'}
  </script>
</body>
</html>